pH/ORP/conductivity/TDS/salinity/dissolved oxygen meter METRINCO LA803PCD (with conformity assessment)

METRINCO LA803PCD is a portable LA-800 series multiparameter meter for measuring pH, ORP, conductivity, TDS, salinity, dissolved oxygen and temperature of aqueous solutions. Supplied with a PG-02 pH electrode, a CD-2 conductivity cell (K = 1), a DO-LA1G dissolved oxygen sensor, a separate TPLA-1 temperature probe, calibration solutions and DO sensor consumables. The CA version is supplied with a completed conformity assessment and a copy of the declaration of conformity.

For comprehensive water quality control in laboratories, at wastewater treatment plants, in aquaculture, water treatment and research — when pH, ORP, conductivity and dissolved oxygen are needed in one instrument. Battery power also allows work away from the lab bench. Suitability for a specific method depends on that method’s requirements.

LA803PCD features

• pH. Measuring range 1.00 to 14.00 pH, maximum permissible absolute error ±0.05 pH (per the type-examination certificate); display resolution 0.01 pH. 1- to 3-point calibration from the buffer set 1.68, 4.01, 7.00, 10.01, 12.45; after calibration the meter shows the electrode slope (PTS), which helps detect a worn electrode in good time.
• ORP. Range −1999 to 2000 mV, error ±(2 mV + 1 digit). ORP measurement requires an OG-2 or OG-3 ORP electrode, which is ordered separately.
• Conductivity, TDS and salinity. With the CD-2 cell (K = 1): four subranges from 1.0 µS/cm to 200.0 mS/cm with automatic unit switching; error ±2.5 % of the upper limit of the subrange. TDS and salinity are calculated from conductivity; the TDS conversion factor is user-defined. Calibration points 0, 84, 1413 µS/cm, 12.88 and 80.0 mS/cm, plus air calibration to set zero.
• Cells with K = 0.1, 1 and 10. The cell constant is set in the menu. Rated metrological characteristics apply to the supplied CD-2 cell (K = 1); alternative cells are selected by technical support.
• Dissolved oxygen. DO-LA1G amperometric membrane sensor, range 0.01 to 20.0 mg/dm³, error ±(0.2 mg/dm³ + 1 digit). Air calibration (101.7 % saturation) and, if needed, an additional zero-oxygen calibration. Salinity (0–50 ppt) and altitude (0–20,000 ft) compensation.
• Separate temperature probe. The TPLA-1 measures temperature from 0 to 110 °C with ±0.5 °C error and provides automatic temperature compensation from 5 to 60 °C; temperature offset adjustment ±3.0 °C.
• BNC for pH and ORP electrodes. Electrodes connect via a BNC connector, and the separate temperature probe allows electrodes without a built-in temperature sensor to be used. Therefore a compatible electrode from another manufacturer can be selected if needed — please check the compatibility of a specific model with technical support.
• Replaceable sensors and consumables. Sensors are replaced separately from the meter; calibration solutions, electrolyte and membrane caps can be ordered separately.
• Convenient operation: auto-hold of a stable reading in pH and DO modes, MAX/MIN mode, splash-protected keypad, backlit 128×64 graphic LCD, built-in stand for bench use.
• Battery operation. Powered by four built-in 10440 (3.7 V) rechargeable batteries, charged via USB Type-C or on the LA80BS base; auto power-off adjustable from 5 to 600 s.
• Portable and laboratory use. The meter works on its own, and with the LA80BS base it becomes a workstation with magnetic stirring and an electrode holder. The base can be bought later.

Data logging and PC connection

The meter lets you view the last 60 manual records (Recall mode).

Readings with date and time are written to an SD card (FAT32): manually with the STO/Enter key, or automatically by timer at intervals from 1 to 600 s. Records are saved as Excel files in the MANUAL and AUTO folders. An SD card is not included.

Via USB Type-C the meter sends readings to a PC in real time. The Windows software lets you set a sampling interval of 1–600 s, view a chart and save data to an Excel file. The software is provided on request.

Conformity assessment and calibration

Status: conformity assessment completed. The meter has undergone conformity assessment under module F based on the approved type (type-examination certificate UA.TR.001 29-26 of 06.08.2026, SE “Ukrmetrteststandart”). A copy of the declaration of conformity is included.

Calibration in a laboratory accredited to DSTU EN ISO/IEC 17025 is available as an additional order and is not included in the price.

Package contents

• METRINCO LA803PCD meter
• PG-02 pH electrode
• CD-2 conductivity cell (K = 1)
• DO-LA1G dissolved oxygen sensor
• TPLA-1 temperature probe
• clip for attaching the temperature probe to the electrode
• pH 4 buffer solution — 50 ml
• pH 7 buffer solution — 50 ml
• 1413 µS/cm standard solution — 50 ml
• 12.88 mS/cm standard solution — 50 ml
• spare membrane caps for the dissolved oxygen sensor — 4 pcs. One more membrane cap is fitted on the sensor
• DO electrolyte — 50 ml
• pipette
• abrasive material for cleaning the DO sensor
• 10440, 3.7 V rechargeable batteries — 4 pcs (installed in the meter)
• soft case
• user manual in Ukrainian
• warranty card
• copy of the declaration of conformity

An OG-2 or OG-3 ORP electrode is ordered separately. A USB cable and a power adapter for the meter are not included. PC software is provided on request.

Warranty and service

Warranty: 24 months for the meter, 3 months for electrodes and sensors; terms are confirmed by the warranty card. The warranty does not cover consumables — buffer and standard solutions, electrolyte, membrane caps. Warranty and post-warranty service is provided by the manufacturer, NSF OTAVA LLC. Technical support in Ukraine helps select electrodes, advises on setup and maintenance, and helps select spare sensors and consumables.